Keystones — Bedrock
Five GCSE retrieval questions · 24 January 2016 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 21 + 14
Answer: 21 + 14 = 35 -
2. Algebra Substitution
If x = 5, find the value of 8x + 5
Answer: 45 -
3. Geometry Converting lengths
Convert 10m to cm
Answer: 1000cm -
4. Ratio Simplifying ratios
Simplify the ratio 20:24
Answer: 5:6 -
5. Statistics Mean
Find the mean of: 24, 15, 4, 12, 20
Answer: 15